| Family | Aristolochiaceae |
| Scientific name | Asarum lutchuense T. Itô |
| Synonyms | Heterotropa lutchuensis (T. Itô) Honda |
| Common name | (Japanese common name) ohba-kan-aoi (オオバカンアオイ, 大葉寒葵 [meaning: large leaved winter hollyhock]) |
| (English common name) none | |
| Distribution | (Japan) Kyushu (Amami Ohshima Island, Tokunoshima Island) |
| (Other nations) none | |
| Habitat | Evergreen forest |
| Chromosomal number | unknown |
| Description | Plants creeping. Leaves 10-19cm long, 6-15cm wide. Flowers pale purple or pale green (inside purple), ca. 2.5-3.5cm across, flowering in December to May. Evergreen. Perennial plants. |
| Reference | Asarum lutchuense T. Itô |
| Note | Endemic to Japan. Rare species. |
| March 2009 at Tsukuba Botanical Garden |
March 2009 at Tsukuba Botanical Garden |
February 2009 at Tsukuba Botanical Garden |